learnin to learn Posted May 4, 2006 Report Share Posted May 4, 2006 In Trig. class we were learning how to use trigometric Identities. I am so lost!! She gave us a problem like this one. sin^3 x - cos^3 x= (1 + sinx * cosx) (sinx - cosx) Then she told us to use the reciprocal, quotient, and pythagorean indetities to symplify the equation, to where there is only 1 trig. finction left. I know how to use the identities but I do not understand how to use them to symplify and equation like this. can some1 plz help me, I am so lost! Quote Link to comment Share on other sites More sharing options...
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